Home / 19,387.85-29,077.67-8,854.88

Finding the Fourth Proportional to 19,387.85, 29,077.67 and 8,854.88

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Solution

The fourth proportional to 19,387.85, 29,077.67 and 8,854.88 is: 13,280.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,387.85 : 29,077.67 = 8,854.88 : x
  2. Step 2: Convert to fraction form
    19,387.85/29,077.67 = 8,854.88/x
  3. Step 3: Cross multiply
    19,387.85x = 29,077.67 × 8,854.88
  4. Step 4: Simplify right side
    19,387.85x = 257,479,088.87
  5. Step 5: Solve for x
    x = 257,479,088.87/19,387.85
  6. Step 6: Final answer
    x = 13,280.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.